This same contradiction is in RFC 2460 (section 4.1) which obsoletes RFC
1883.
Hi all,
I might be totally wrong in this but I see that there are two
contradicting statements in RFC1883 for IPv6. Can somebody please explain
Page 7
statement a:
Each extension header should occur at most once, except for the
Destination Options header which should occur at most twice (once
before a Routing header and once before the upper-layer header).
statement b:
IPv6 nodes must accept and attempt to process extension headers in
any order and occurring any number of times in the same packet,
except for the Hop-by-Hop Options header which is restricted to
appear immediately after an IPv6 header only.
I am sorry if this has already been raised as a question and answered.
Thanks in advance,
Suresh
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